netdev - [PATCH] cdc-eem: bad crc checking

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Message-ID: <5ca532980907160908k3c18fd16k18e17f92a18de5a8@mail.gmail.com>
Date:	Thu, 16 Jul 2009 18:08:58 +0200
From:	Vincent CUISSARD <vincent.cuissard@...il.com>
To:	netdev@...r.kernel.org
Subject: [PATCH] cdc-eem: bad crc checking

When the driver received an EEM packet with CRC option enabled, driver must
compute and check the CRC of the Ethernet data. Previous version computes CRC
on Ethernet data plus the original CRC value. Skbuff is correctly trimed but
the old length is used when CRC is computed.


Signed-off-by: Vincent CUISSARD <vincent.cuissard@...il.com>
---
 drivers/net/usb/cdc_eem.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/drivers/net/usb/cdc_eem.c b/drivers/net/usb/cdc_eem.c
index 80e0177..b9e7162 100644
--- a/drivers/net/usb/cdc_eem.c
+++ b/drivers/net/usb/cdc_eem.c
@@ -311,7 +311,7 @@ static int eem_rx_fixup(struct usbnet *dev, struct
sk_buff *skb)
 			 *	bmCRC = 0	: CRC = 0xDEADBEEF
 			 */
 			if (header & BIT(14))
-				crc2 = ~crc32_le(~0, skb2->data, len);
+				crc2 = ~crc32_le(~0, skb2->data, skb2->len);
 			else
 				crc2 = 0xdeadbeef;
--
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